In this second book Aunt Papucha and her inseparable cat Micifú go on a cruise. On the trip she will meet, among others, the Marchioness of Piturrí, a famous and infinitely rich woman and creator of the most expensive material in the world: brorrio. That wonderful voyage is clouded by the disappearance of the Marchioness's brorrio-and-diamond necklace. Will Aunt Papucha be able to unmask the culprit and recover it? Or would it be better if she were not on board? Dare to take on this saga full of humor.